Repeating mechanism for talking-machines.



L. ABJJAHAV.

REPEATNG MECHNSM FOR TALKNG MAGHINS.

APPLlGMION .FILED MM..26,1914.

Patented Aug. H., wifi.

LAVIRENCE ABRLHAILVI, GE?

Specification of FO :it

'Patented Aue'. 11, 1914.

Letters Patent ro/mm 'it 21mg/ ci'mrern: c loicwu that l, LAWRENCE.ABRAHAM, .tiicen of the United States, and a resithe borough ot'ltllanl'iattan city, and State ol New York, have inl'fertrdn new anduseful Improve s in lieiuating; lvl'echanisni tor Talkingfics, ot whichthe following is a speci- 'ha inrention relates more particularly toiaaisni tor use in connection with disk l "l if machines although thesaine raged Yl'or ase in connection with of stach machines.

ent has for its object to t 'me .machmeto rel, latthe playing ot i ntoniatically without recpiirinfgr attention on the part the operatorthan to keep the motor yin operation.

her object ot niy im'ention is .t0 preraping ot the rep'rmluoing needlethe disk ai''er the record is played if A should neglect rto remove thei 'iccdle l'roln an operative position.

objects will appear fron the de reiiialfter and the features olf hepointed out in the appended ecbanisin is an i1nea included in n'iy e529,llled Decemrir described n:

y no thc broad i le he had to the aeeonipany= l i s which illustrate anexample 'amroreincnt as applied to the well aiking machine and in anric-w; l'ig. is a side section; and Figs. 3, 4, views showlnf successive'l (l'lAflfluL H l e d awings l() represents the customtablc recordtable secured upon a 'driven shalt ll and haring an axial a l extendingupwardly 'troni its adapted lo project through an in llzo lav-toniarydisk record a l ler is positioned on and earl ld in lhc well knowninanboi; l-l carrying the reprois carried by the tube l?) lured al l?upon and communi ith the usual tone arm lil. the latter being pivotedal: l) upon e stationary portion ot the mac-bine. lilith thisconstruction the sound bei; and needle together with the tone arm faremovable in a horizontal plane and the sound box and needle together withthe tube i6 are capable of a movement in a vertical plane about thepivot 17. The parts se -iar described and their operation are well knownfor instance in the Victor talking inachine and need no furtherdescription.

My improved mechanism as illustrated in the present instance comprises abase or support preferably weighted and adapted to be placed upon thetable l() or rather upon arecord 13 thereon, an axi al recess 2l beingproridcd in said base for the accommodation of the projection l2 andwhereby the said support is maintained iny a central position on thetable o record, rlhe supporting' surface o'l" said base 2O preferablycovered with felt or similar n'iatcrial 22 whereby the surface ol" therecord 'lil is protected against injury and a` better trictionalengagement betwcei'i said record and base is secured 'for the purpose'to be more fully described hereinal'tei'. lV rod 2?) extends upwardlytroni the support or base 2O and is adaptedto receive an erfernallyserewsthreadcd split sleeve or collar -l secured to or forming part ofan annular or circular track Q5 concentrically arranged about saidsleeve or collar 24. A spiral track or cani is located above the trackQ5 and has its inner end 27 inclined downwardly and connected with saidtrack at 28, the said inner ond 21T being; pretera'blr circular audarranged concentric with the innerv tace of the said annular track Theouter tree-end portion Q6 ol the spiral track or cani @o preferably madeseinewhat yielding or flexible 'tor the purpose to be more clearly setforth hereinafter. The tracks 2:3 and il@ are thus located one above theotherV in planes parallel to the record tabl e and the record carriedthereby and are carried by the sl Re or collar lll the latter in turn'being supported upon the rod 23. Vln order that the said sleeve orcollar 24 may" fnstah secured inany position within certain liant-s uponsaid rod Zi-l, l proridr a lock nut 29 arrairgc'dto be actuated tosecurely elanip said sleeve upon the nl rod and to permit a o'iovenicntlengthl :wise tirarla between the tracks 25 and 26 and-the face oli' therecord 13 may be varied to permit the said tracks to properly pass overthe sound boX 14 When my improved mechanism is in operative position.

In order that the said tracks 25 and 26 may properly perform theirintended lunctions I provide a clamp 30 comprising two members pivotedtogether at 3l and adapted to embrace the tube l1G, a nut or screw beingprovided for securelf fastening said clamp 30 in position on said tube16. A rod 33 is rigidly secured to or forms part of the clamp 30 and asits free end is provided with spaced members 34C connected together andmaintained in, spaced relation by means 'of cross-pins 35 and 35aasshown in Fig. 2. A pawl 36 has its one end portion bent upon itself toform parallel con nected legs 37 and 3S located respectively above andbelow the pins 35 and 35*1 and between the members 34 as shown in Figs.3 6. A. pin 39 connects the legs 87 and 38 and extends across the spacetherebetween, said pin 39 being located between the pins 35 and 35a andcoperating therewith to limit the movements of said paWl 36 asavill behereinafter more fully described. rthe tree end of the leg 3S is bent asindicated at L.l0 and the outer free end of the pavfl 36 is shaped toform a. hook or depending lug 4l adapted to ride up on the preferablybeveled outer face 25 of the circular track 25 and smtp or drop over theupper edge thereof in the operation of the mechanism. Gravity or asuitable spring is adapted to maintain the said pawl 36 in. and returnit to its normal position shown approximately in Fig. 3. The clamp 30 ispreferably secured upon the tube 1G at a point near the pivot 17 withthe rod 33 extending in a direction toward the sound. box il@ and atsubstantially right angles to the axis thereol', in which condition themembers 84 and pawl 36 are located in more or less close proximity tothe said sound box i4 as shown best in Fig. l.

After the clamp 30 and its connected parts have been properly placed andsecured lin position and a repetition of a given record is desired, allthat is necessary is to place the said record upon the record table inthe customary mannerV and then place the base upon said record with therecess 2l located over the projection l2 as shown in Fig. 2. In thiscondition the base 2O and withit the tracks 25 and 26' are mounted torotate in unison with the record table 10 and the disk 13 thereon, theWeight of the base 2O and the rictional contact between the felt 22andthe disk 1 3 and between the latter and this result. From t be seenarriv vein that as 'tile needle ent it vv'll.

'ons

'he "table l0 inimringljA spiral thread olE the record and is thusgrad-- ally fed inward toward the anis ol. the rco-y ord table the pawl3G will be carried toward the circular track 25, it being ululcrstoodthat the parts are so positioned that this track is in the horizontalpath of said pawl 3G, while the track 2G rotates in a horizontal planeaiovefthe sound box llt and thus clears the same. )is the end of therecord approached the hook or lug all will linally engage or strike thebeveled tace 2li ot' said track 25 and as the needle and connected partscontinue to advance toward the axis ol' t ie table l0 in the directionindicated by the arrow rz in Fig. 3 further progress of the said pawlwill he arrested so that said pawl remains relatively stationary and thepin 3.3 will be moved lowarb the pin S9. the members moving' along` thelegs 37 and 38 as will hc clear from an inspection of Fig. 3.'llhrougjhont this part oi' the operation the pawl 3G is held against asvinging movement thrfnigh the cooperation ol' the legs 1:37 and 3H withthe pins and 35" so that any tendency of the hook r lug l to ride uponthe beveled surname 25 is ccunteracted. The :hxlaiive slil'iing movementbetween the pani lll and the members 3l or in other words hotn"\en lpawl and the needle confinally the pin 3.5" contacand the bend l0 is inregistry 35 whereupon a continued the needle 15 tonfard the end therecord will` canse said in 3F to exert a push upon. the pin 39 and thusforce the hook or projection .fl up the bevcled face of` the track 25until inally the position illustrated in Fig. 4. is reached. The pivotalmovement ot the pawl 3G at this stage of the operation is made pos 4ibleowing to the 'tact that as before stated the bend l0 is in rcggffislrvwilli the 'pin fili as is clearly .shown in said l. ",l`hc pavvl 3U newcontii'iues to more as a unit with the needle l5 until the hook or lngll snaps or drops over the upper edge oli the circular tack as shown inFig. 5i and as rotation ot the parts continues omnes into engage nientwith. the spiral track 2G, and is slid ably moved thereon across thepins 35 and 35 relatively to the members 3.5 shown in Fig. 6 untilfinally the pin is again seated in the bend connectingl the two legs 37and 3S and further relative movement between the said pawl 8G and themembers 34 arrested and the said pawl is again. locked against pivotalmovement mno-lively to said members Bel and the needle It will thus beseen that glaring the initial 'ioveinent of tht paw] 3G :thing thespiral t l cani El] tlm r" die einnins sla- 'ii iat .a

ti f i3 afford lille' lib lib

ino?

is absolutely prevented. A continued opera ltion now causes the pawl 36to exert a pull Will be moved outwardly thereby and will' accordinglymove said needle 15 outwardly in this inoperative position, back towardthe starting point of said record. As this starting is reached the outerfree end portion 26a will gradually yield downwardly under the weight ofthe sound box 14 and connected parts and thus bring the needle 15 nearerto the disk, so vthat as this outer free end portion 26 is finallyWithdrawn from beneath the paivl 3G the said needle l5 will be gentlydeposited. upon said disk at approximately the starting point orbeginning of the record. As soon this happens the end portion 2li will.return to its normal position and the record will be rendered againWithout interference until the linisli is again reached and the abovedescribed operation is repeateda this proceeding continuing until themachine has run down or its operation is otherwise stopped.

It will be seen that my improved mechanisi'n is absolutely reliable inoperation and not likely to become disarranged and further that thesaine may readily be combined with existing machines withoutnecessitating any change in. consiructionn 'By adjusting the clamp 30along the tube 1G the position ot the pnivl 3G relatively to the tracks25 and 2li may be usted and the time of engagement ot said paul withsaid tracks thus regulated relatively to the record.. Similarly byswinging the rod in an arc about the tube 16 a center the paivl 36 maybe raised or loW- ered to properly engage the track 25 in any adjustedposition of the latter. It desired a suitable spring may be introducedfor the purpose of maintaining the paWl 36 in its forward position withthe pin 35 located in the bend connecting the legs 37 and 3S.

'When it is desired to change the record the base or support 20 issimply removed from the record on the table 10 after 'which said recordmay be .removed and another one substituted therefor. li this new recordis to be repeated the said base is simply replaced; otherwise themachine may be used in the usual Way. The clamp and its connected. partsmay permanently remain on the ma chine or it may be removed when thebase 20 and connected tracks 25 and 2G are not used zr `When repetitionof a record is not desired. The said clamp and its parts do notinterfere -With the ordinary playing of a record.

able relatively to 'said needle is ca ,aan

lily improved device as herein shown and described has in practice givensatisfactory results and is ellicicnt in opera-tion but l do not Wish tobe limited to the specific details of construction. illustrated for itwill readil reproducing needle7 a support adapted to rest upon therecord carried. by said table, a cani iarried bv said support andadjustable thereon to va the distance from the record table and meansconnected with said needle and adapted to cciiperatc with said caniwhereby said. needle is lilted from an operative position and niovedback toward its starting point.

in a repeating mechanism for talking nia 'nes the combination ci arotatable rec ord table., a movable reproducer needle, a cam connectedto nieve with said table anda paul connected with said needle and mov`said needle in a direction parallel with the path in which said needletravels, said. paivl. coiiperatiug with said cani to more said needleIfrom an operative posi-1 tion and return .it toward its starting position.

3. in a repeating mechanism for talking niacl'iincs t combination otarotatable rec ord table, a pirotally mounted civiroducer needle., a camconnected to inove with said table. a paivl ad d. to coijierate withsaid cain to raise said n` idle from an operative position and return ittoward its starting pointt said paw being slidable relatively to saidneedle whereby the latter is capable ofi' L an. independein; movement inthe direction oli its travel and means i'or causing said paul and needleto nieve inlunison.

t, ln a repeating mechanism for talking niachii'ies the ciunbination ofa rotatable record table, a [.iirotally mounted reproducer needle, a camconnected to more with said liable a support connected with said needle,and a pa'ul on .said support adapted to cooperate with said cara toraise said needle 'from :in operative piisition and return it toward itsstarting poinla said paivl being slidable relatively to said supportwhereby ile of an iiidependent hautement in the. clirectinn olf itstravel..

. ln a repeating mechanism for talking :achincs the combination ot arotatable reco 'd table, a pivotally mounted repro-- ducer needle7 anannular track connected with said tabl-e to iiiorif` therewith, a spiralCain connected with sa' track, a support detachably connor' 'a h saidnecffllev a parfl slidably incur:

ne uinlerstood that various changes may ,ad on sail support and .vneedle,

adapted to engage said track and to be slidably moved thereby andwhereby said paWl is slidably moved and 1 uponsaid tube,

travels upon said face to pivotally move said pawl, said track beingadapted to guide said pawl into operativeengagement with said .spiralcam and means for limiting the slidlng movement of said pawl and forpreventmgpivotal movement thereo'il during such sliding movement. Y

7. In a repeating mechanism for talking machines, a rotatable recordtable, a tone arm movable in a direction across said table, a tube.pivotally connected therewith to seing in a plane at right angles tosaid directioina sound box carried by said tube, ar reproducer needleconnected with said sound box, a clamp arranged to be secured a rodcarried by said clamp, a pawl slidablv mounted on said rod, a spiralcam, and an annular track connected to move 'with said table andconnected with said cam.

whereby said pawl is slidably mo'ed and guided into operative connectionwith said 'said tube,

move said legs -to guide said lug into operative engagement,

cam and said tube is pivotally moved and said needle is raised from anoperative position `and returned toward its starting position.

8. In a repeating mechanism :for talking machines, a rotatable recordtable, a tone arm movable in a direction across said table, a tubepivotally connected therewith to swing1 in a plane at right angles tosaid di rection, a sound box carried by said tube, a reproducer needleconnected with .said sound box, a clamp arranged to be secured upon arod carried by said clamp, spaced members located at the free end ofsaid rod, pins connecting said members, parallel connected legsslidableabofe and below said pins and between said members, a cross-pinconnecting said legs at a point between said iirstnamed pins, a lugconnected with said legs, a base adapted to rest upon a record carriedby said table, an annular track on said base and a spiral cam connectedwith said track, said track being arranged to engage said lug andslidably between said members and with said camwhereby said tube ispivotally moved and said needle is raised from an operative position andreturned toward its starting' position.

In testimony whereof l have hereunto set my hand in the presence of twosubscribin witnesses.l

LAWRENCE ABRAHAB'I. Witnesses PAUL W. Franse, ARTHUR G. JAnvIs.

